作 者 ：Ying Tsun-Shen
期 刊 ：植物分类学报 1989年 1期
关键词：地理分布松科植物中国；
Keywords:Geographic, distribution,
Abstract:
Nine of 10 genera and 119 of approximately 240 species of the Pinaceae occur
in China, including 67 endemic species and two endemic genera.
In this paper, the distributional maps of all the genera of the Pinaceae are presented (fig.
1-8). The horizontal and vertical distributions of species in each genus are discussed.
The analysis of the distribution patterns of the genera indicates that some genera, such as
Keteleeria, Tsuga, Pseudotsuga, Cathaya and Pseudolarix, are restricted to the area south of the
Qinling Mountains and the Huaihe River, and the others, i. e. Picea, Abies, Larix and Pinus,
extend northward to northeastern China. However, all of the genera except Keteleeria and Pinus
are not found in very dry areas and tropical mountainous regions of China.
The monotypic genera, Cathaya and Pseudolarix, are distributed in eastern and central
China. The genus Keteleeria consists of 10 species, 7 of which are concentrated in southern
Guizhou, northern Guangxi, southwestern Hunan and easternmost Yunnan. The distribution of
the remaining 6 genera shows the maximum concentration in western Sichuan and northwestern
Yunnan. (Figs. 2-8). Furthermore, more than third of species of the Pinaceae (37.8%) are
also concentrated in western Sichuan and northwestern Yunnan. where a great variety of ha-
bitats and different topographic features occur. It is apparent that to conduct our systematic and
evolutionary studies on this family in these region is especially needed.
The relations between the areal size and the tolerance of species are discussed. The distri-
butions of macrofossils and microfossils of the genera of the Pinaceae ia China are given, and
it has been proved that areas of most genera of the family were considerably larger in the past.
than at present.